Error reloading bind on server rndc: subdomain creation error

Then you need to check the named configuration file that is /etc/named.conf something is messed up there.

Try to reload the named and if its giving you any error lkeError reloading bind then run this script

/scripts/fixrndc

If its that even gives you any error then

!! /var/named/domain.com.db does not exist, unable to locate.!! Run /scripts/cleandns to remove zone without corresponding files.!! Or locate the proper zone file and place in /var/named and rerun!! This script with the following options: /script/fixndc -fv

Then run /scripts/cleandns and reload named that will solve your problem. )